rxvt-unicode/src/rxvtutil.h

#ifndef RXVT_UTIL_H
#define RXVT_UTIL_H

#include <cstdlib>
#include <cstring>

using namespace std;

#define PP_CONCAT_(a, b) a ## b
#define PP_CONCAT(a, b) PP_CONCAT_(a, b)
#define PP_STRINGIFY_(a) #a
#define PP_STRINGIFY(a) PP_STRINGIFY_(a)

#define HAVE_GCC_BUILTINS (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ == 4))

#if __GNUC__ >= 4
# define rxvt_attribute(x) __attribute__(x)
# define expect(expr,value)         __builtin_expect ((expr),(value))
#else
# define rxvt_attribute(x)
# define expect(expr,value)         (expr)
#endif

// put into ifs if you are very sure that the expression
// is mostly true or mosty false. note that these return
// booleans, not the expression.
#define expect_false(expr) expect ((expr) != 0, 0)
#define expect_true(expr)  expect ((expr) != 0, 1)

#define NORETURN rxvt_attribute ((noreturn))
#define UNUSED   rxvt_attribute ((unused))
#define CONST    rxvt_attribute ((const))

// increases code size unless -fno-enforce-eh-specs
#if __GNUC__
# define NOTHROW
# define THROW(x)
#else
# define NOTHROW  throw()
# define THROW(x) throw x
#endif

extern class byteorder {
  static unsigned int e; // at least 32 bits
public:
  byteorder ();

  static bool big_endian    () { return e == 0x11223344; };
  static bool network       () { return e == 0x11223344; };
  static bool little_endian () { return e == 0x44332211; };
  static bool vax           () { return e == 0x44332211; };
} byteorder;

// various utility functions
template<typename T, typename U> static inline T    min    (T  a, U b) { return a < (T)b ? a : (T)b; }
template<typename T, typename U> static inline void min_it (T &a, U b) {    a = a < (T)b ? a : (T)b; }
template<typename T, typename U> static inline T    max    (T  a, U b) { return a > (T)b ? a : (T)b; }
template<typename T, typename U> static inline void max_it (T &a, U b) {    a = a > (T)b ? a : (T)b; }

template<typename T, typename U, typename V> static inline T    clamp    (T  v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; }
template<typename T, typename U, typename V> static inline void clamp_it (T &v, U a, V b) {    v = v < (T)a ? a : v >(T)b ? b : v; }

template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; }

template<typename T> static inline T squared_diff (T a, T b) { return (a-b)*(a-b); }

// linear interpolation
template<typename T, typename U, typename P>
static inline
T lerp (T a, U b, P p)
{
  return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100;
}

template <typename I, typename T>
I find (I first, I last, const T& value)
{
  while (first != last && *first != value)
    ++first;

  return first;
}

// return a very temporary (and never deallocated) buffer. keep small.
void *rxvt_temp_buf (int len);

template<typename T>
static inline T *
rxvt_temp_buf (int len)
{
  return (T *)rxvt_temp_buf (len * sizeof (T));
}

// some bit functions, xft fuck me plenty
#if HAVE_GCC_BUILTINS
static inline int ctz      (unsigned int x) { return __builtin_ctz      (x); }
static inline int popcount (unsigned int x) { return __builtin_popcount (x); }
#else
// count trailing zero bits and count # of one bits
int ctz      (unsigned int x) CONST;
int popcount (unsigned int x) CONST;
#endif

// in range including end
#define IN_RANGE_INC(val,beg,end) \
  ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))

// in range excluding end
#define IN_RANGE_EXC(val,beg,end) \
  ((unsigned int)(val) - (unsigned int)(beg) <  (unsigned int)(end) - (unsigned int)(beg))

// for m >= -n, ensure remainder lies between 0..n-1
#define MOD(m,n) (((m) + (n)) % (n))

// makes dynamically allocated objects zero-initialised
struct zero_initialized
{
  void *operator new (size_t s);
  void operator delete (void *p, size_t s);
};

/* simplevec taken (and heavily modified), from:
 *
 *  MICO --- a free CORBA implementation
 *  Copyright (C) 1997-98 Kay Roemer & Arno Puder
 */
template<class T>
struct simplevec
{
    typedef T* iterator;
    typedef const T* const_iterator;
    typedef unsigned long size_type;

private:
    size_type _last, _size;
    T *_buf;

public:
    const_iterator begin () const
    {
        return &_buf[0];
    }
    iterator begin ()
    {
        return &_buf[0];
    }
    const_iterator end () const
    {
        return &_buf[_last];
    }
    iterator end ()
    {
        return &_buf[_last];
    }
    size_type capacity () const
    {
        return _size;
    }
    size_type size () const
    {
        return _last;
    }

private:
    static T *alloc (size_type n)
    {
        return (T *)::operator new ((size_t) (n * sizeof (T)));
    }
    static void dealloc (T *buf)
    {
        if (buf)
            ::operator delete (buf);
    }

    void reserve (iterator where, size_type n)
    {
        if (_last + n <= _size) {
            memmove (where+n, where, (end ()-where)*sizeof (T));
        } else {
            size_type sz = _last+n;
            sz = (_size == 0) ? max (sz, 5) : max (sz, 2*_size);
            T *nbuf = alloc (sz);
            if (_buf) {
                memcpy (nbuf, begin (), (where-begin ())*sizeof (T));
                memcpy (nbuf + (where-begin ()) + n, where,
                        (end ()-where)*sizeof (T));
                dealloc (_buf);
            }
            _buf = nbuf;
            _size = sz;
        }
    }

public:
    void reserve (size_type sz)
    {
        if (_size < sz) {
            sz = (_size == 0) ? max (sz, 5) : max (sz, 2*_size);
            T *nbuf = alloc (sz);
            if (_buf) {
                memcpy (nbuf, begin (), size ()*sizeof (T));
                dealloc (_buf);
            }
            _buf = nbuf;
            _size = sz;
        }
    }
    simplevec ()
    : _last(0), _size(0), _buf(0)
    {
    }
    simplevec (size_type n, const T& t = T ())
    : _last(0), _size(0), _buf(0)
    {
        insert (begin (), n, t);
    }
    simplevec (const_iterator first, const_iterator last)
    : _last(0), _size(0), _buf(0)
    {
        insert (begin (), first, last);
    }
    simplevec (const simplevec<T> &v)
    : _last(0), _size(0), _buf(0)
    {
        reserve (v._last);
        memcpy (_buf, v.begin (), v.size ()*sizeof (T));
        _last = v._last;
    }
    simplevec<T> &operator= (const simplevec<T> &v)
    {
        if (this != &v) {
            _last = 0;
            reserve (v._last);
            memcpy (_buf, v.begin (), v.size ()*sizeof (T));
            _last = v._last;
        }
        return *this;
    }
    ~simplevec ()
    {
        dealloc (_buf);
    }
    const T &front () const
    {
        //ministl_assert (size () > 0);
        return _buf[0];
    }
    T &front ()
    {
        //ministl_assert (size () > 0);
        return _buf[0];
    }
    const T &back () const
    {
        //ministl_assert (size () > 0);
        return _buf[_last-1];
    }
    T &back ()
    {
        //ministl_assert (size () > 0);
        return _buf[_last-1];
    }
    bool empty () const
    {
        return _last == 0;
    }
    void clear ()
    {
        _last = 0;
    }
    void push_back (const T &t)
    {
        reserve (_last+1);
        *end () = t;
        ++_last;
    }
    void push_back (T &t)
    {
        reserve (_last+1);
        *end () = t;
        ++_last;
    }
    void pop_back ()
    {
        //ministl_assert (size () > 0);
        --_last;
    }
    const T &operator[] (size_type idx) const
    {
        //ministl_assert (idx < size ());
        return _buf[idx];
    }
    T &operator[] (size_type idx)
    {
        //ministl_assert (idx < size ());
        return _buf[idx];
    }
    iterator insert (iterator pos, const T &t)
    {
        //ministl_assert (pos <= end ());
        long at = pos - begin ();
        reserve (pos, 1);
        pos = begin ()+at;
        *pos = t;
        ++_last;
        return pos;
    }
    iterator insert (iterator pos, const_iterator first, const_iterator last)
    {
        //ministl_assert (pos <= end ());
        long n = last - first;
        long at = pos - begin ();
        if (n > 0) {
            reserve (pos, n);
            pos = begin ()+at;
            memcpy (pos, first, (last-first)*sizeof (T));
            _last += n;
        }
        return pos;
    }
    iterator insert (iterator pos, size_type n, const T &t)
    {
        //ministl_assert (pos <= end ());
        long at = pos - begin ();
        if (n > 0) {
            reserve (pos, n);
            pos = begin ()+at;
            for (int i = 0; i < n; ++i)
                pos[i] = t;
            _last += n;
        }
        return pos;
    }
    void erase (iterator first, iterator last)
    {
        if (last != first) {
            memmove (first, last, (end () - last) * sizeof (T));
            _last -= last - first;
        }
    }
    void erase (iterator pos)
    {
        if (pos != end ()) {
            memmove (pos, pos+1, (end () - (pos+1)) * sizeof (T));
            --_last;
        }
    }
    void swap (simplevec<T> &t)
    {
        ::swap(_last, t._last);
        ::swap(_size, t._size);
        ::swap(_buf, t._buf);
    }
};

template<class T>
bool operator== (const simplevec<T> &v1, const simplevec<T> &v2)
{
    if (v1.size () != v2.size ())
        return false;
    return !v1.size () || !memcmp (&v1[0], &v2[0], v1.size ()*sizeof (T));
}

template<class T>
bool operator< (const simplevec<T> &v1, const simplevec<T> &v2)
{
    unsigned long minlast = min (v1.size (), v2.size ());
    for (unsigned long i = 0; i < minlast; ++i) {
        if (v1[i] < v2[i])
            return true;
        if (v2[i] < v1[i])
            return false;
    }
    return v1.size () < v2.size ();
}


template<typename T>
struct vector : simplevec<T>
{
};

struct stringvec : simplevec<char *>
{
  ~stringvec ()
  {
    for (char **c = begin (); c != end (); c++)
      free (*c);
  }
};

#if 0
template<typename T>
struct rxvt_vec : simplevec<void *>
{
  typedef T *iterator;

  void push_back (T d) { simplevec<void *>::push_back ((void *)d); }
  T pop_back () { return (T*)simplevec<void *>::pop_back (); }
  void erase (int i) { erase (begin () + i); }
  void erase (iterator i) { simplevec<void *>::erase ((void **)i); }
  iterator begin () const { return (iterator)simplevec<void *>::begin (); }
  iterator end () const { return (iterator)simplevec<void *>::end (); }
  T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); }
  const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); }
};
#endif

template<typename T>
struct auto_ptr
{
  T *p;

  auto_ptr () : p (0) { }
  auto_ptr (T *a) : p (a) { }

  auto_ptr (auto_ptr<T> &a)
  {
    p = a.p;
    a.p = 0;
  }

  template<typename A>
  auto_ptr (auto_ptr<A> &a)
  {
    p = a.p;
    a.p = 0;
  }

  ~auto_ptr ()
  {
    delete p;
  }

  // void because it makes sense in our context
  void operator = (T *a)
  {
    delete p;
    p = a;
  }

  void operator = (auto_ptr &a)
  {
    *this = a.p;
    a.p = 0;
  }

  template<typename A>
  void operator = (auto_ptr<A> &a)
  {
    *this = a.p;
    a.p = 0;
  }

  operator T * () const { return p; }

  T *operator -> () const { return p; }
  T &operator * () const { return *p; }

  T *get ()
  {
    T *r = p;
    p = 0;
    return r;
  }
};

typedef auto_ptr<char> auto_str;

#endif

Revision:	1.38
Committed:	Wed Nov 5 14:43:54 2008 UTC (15 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-9_06
Changes since 1.37:	+8 -4 lines
Log Message:	minor overlay refactoring, syntax changes
#	User	Rev	Content
1	root	1.1	#ifndef RXVT_UTIL_H
2			#define RXVT_UTIL_H
3
4	root	1.19	#include <cstdlib>
5	root	1.4	#include <cstring>
6
7	root	1.27	using namespace std;
8
9	root	1.15	#define PP_CONCAT_(a, b) a ## b
10			#define PP_CONCAT(a, b) PP_CONCAT_(a, b)
11			#define PP_STRINGIFY_(a) #a
12			#define PP_STRINGIFY(a) PP_STRINGIFY_(a)
13
14	ayin	1.28	#define HAVE_GCC_BUILTINS (__GNUC__ >= 4 \|\| (__GNUC__ == 3 && __GNUC_MINOR__ == 4))
15	root	1.22
16	root	1.31	#if __GNUC__ >= 4
17	root	1.30	# define rxvt_attribute(x) __attribute__(x)
18	root	1.37	# define expect(expr,value) __builtin_expect ((expr),(value))
19	root	1.30	#else
20			# define rxvt_attribute(x)
21	root	1.37	# define expect(expr,value) (expr)
22	root	1.24	#endif
23
24	root	1.37	// put into ifs if you are very sure that the expression
25			// is mostly true or mosty false. note that these return
26			// booleans, not the expression.
27			#define expect_false(expr) expect ((expr) != 0, 0)
28			#define expect_true(expr) expect ((expr) != 0, 1)
29
30	root	1.30	#define NORETURN rxvt_attribute ((noreturn))
31			#define UNUSED rxvt_attribute ((unused))
32			#define CONST rxvt_attribute ((const))
33	root	1.24
34			// increases code size unless -fno-enforce-eh-specs
35			#if __GNUC__
36			# define NOTHROW
37			# define THROW(x)
38			#else
39			# define NOTHROW throw()
40			# define THROW(x) throw x
41			#endif
42
43	root	1.1	extern class byteorder {
44			static unsigned int e; // at least 32 bits
45			public:
46			byteorder ();
47
48			static bool big_endian () { return e == 0x11223344; };
49			static bool network () { return e == 0x11223344; };
50			static bool little_endian () { return e == 0x44332211; };
51			static bool vax () { return e == 0x44332211; };
52			} byteorder;
53
54	root	1.16	// various utility functions
55	root	1.13	template<typename T, typename U> static inline T min (T a, U b) { return a < (T)b ? a : (T)b; }
56			template<typename T, typename U> static inline void min_it (T &a, U b) { a = a < (T)b ? a : (T)b; }
57			template<typename T, typename U> static inline T max (T a, U b) { return a > (T)b ? a : (T)b; }
58			template<typename T, typename U> static inline void max_it (T &a, U b) { a = a > (T)b ? a : (T)b; }
59
60			template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; }
61			template<typename T, typename U, typename V> static inline void clamp_it (T &v, U a, V b) { v = v < (T)a ? a : v >(T)b ? b : v; }
62
63	root	1.14	template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; }
64	root	1.8
65	root	1.25	template<typename T> static inline T squared_diff (T a, T b) { return (a-b)*(a-b); }
66
67	root	1.21	// linear interpolation
68			template<typename T, typename U, typename P>
69			static inline
70			T lerp (T a, U b, P p)
71			{
72	root	1.26	return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100;
73	root	1.21	}
74
75	ayin	1.32	template <typename I, typename T>
76			I find (I first, I last, const T& value)
77			{
78			while (first != last && *first != value)
79			++first;
80
81			return first;
82			}
83
84			// return a very temporary (and never deallocated) buffer. keep small.
85			void *rxvt_temp_buf (int len);
86
87			template<typename T>
88			static inline T *
89			rxvt_temp_buf (int len)
90			{
91			return (T )rxvt_temp_buf (len sizeof (T));
92			}
93
94	root	1.22	// some bit functions, xft fuck me plenty
95			#if HAVE_GCC_BUILTINS
96	root	1.30	static inline int ctz (unsigned int x) { return __builtin_ctz (x); }
97			static inline int popcount (unsigned int x) { return __builtin_popcount (x); }
98	root	1.22	#else
99			// count trailing zero bits and count # of one bits
100	root	1.24	int ctz (unsigned int x) CONST;
101			int popcount (unsigned int x) CONST;
102	root	1.22	#endif
103
104	root	1.11	// in range including end
105			#define IN_RANGE_INC(val,beg,end) \
106	root	1.9	((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))
107	root	1.1
108	root	1.11	// in range excluding end
109			#define IN_RANGE_EXC(val,beg,end) \
110			((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg))
111
112	ayin	1.36	// for m >= -n, ensure remainder lies between 0..n-1
113			#define MOD(m,n) (((m) + (n)) % (n))
114
115	root	1.16	// makes dynamically allocated objects zero-initialised
116	root	1.38	struct zero_initialized
117			{
118	root	1.4	void *operator new (size_t s);
119			void operator delete (void *p, size_t s);
120			};
121
122			/* simplevec taken (and heavily modified), from:
123	ayin	1.29	*
124	root	1.4	* MICO --- a free CORBA implementation
125			* Copyright (C) 1997-98 Kay Roemer & Arno Puder
126			*/
127			template<class T>
128	root	1.38	struct simplevec
129			{
130	root	1.4	typedef T* iterator;
131			typedef const T* const_iterator;
132			typedef unsigned long size_type;
133
134			private:
135			size_type _last, _size;
136			T *_buf;
137
138			public:
139			const_iterator begin () const
140			{
141	root	1.8	return &_buf[0];
142	root	1.4	}
143			iterator begin ()
144			{
145	root	1.8	return &_buf[0];
146	root	1.4	}
147			const_iterator end () const
148			{
149	root	1.8	return &_buf[_last];
150	root	1.4	}
151			iterator end ()
152			{
153	root	1.8	return &_buf[_last];
154	root	1.4	}
155			size_type capacity () const
156			{
157	root	1.8	return _size;
158	root	1.4	}
159			size_type size () const
160			{
161	root	1.8	return _last;
162	root	1.4	}
163
164			private:
165			static T *alloc (size_type n)
166			{
167	root	1.8	return (T )::operator new ((size_t) (n sizeof (T)));
168	root	1.4	}
169			static void dealloc (T *buf)
170			{
171	root	1.8	if (buf)
172			::operator delete (buf);
173	root	1.4	}
174
175			void reserve (iterator where, size_type n)
176			{
177	root	1.8	if (_last + n <= _size) {
178			memmove (where+n, where, (end ()-where)*sizeof (T));
179			} else {
180			size_type sz = _last+n;
181			sz = (_size == 0) ? max (sz, 5) : max (sz, 2*_size);
182			T *nbuf = alloc (sz);
183			if (_buf) {
184			memcpy (nbuf, begin (), (where-begin ())*sizeof (T));
185			memcpy (nbuf + (where-begin ()) + n, where,
186			(end ()-where)*sizeof (T));
187			dealloc (_buf);
188			}
189			_buf = nbuf;
190			_size = sz;
191			}
192	root	1.4	}
193
194			public:
195			void reserve (size_type sz)
196			{
197	root	1.8	if (_size < sz) {
198			sz = (_size == 0) ? max (sz, 5) : max (sz, 2*_size);
199			T *nbuf = alloc (sz);
200			if (_buf) {
201			memcpy (nbuf, begin (), size ()*sizeof (T));
202			dealloc (_buf);
203			}
204			_buf = nbuf;
205			_size = sz;
206			}
207	root	1.4	}
208			simplevec ()
209			: _last(0), _size(0), _buf(0)
210			{
211			}
212			simplevec (size_type n, const T& t = T ())
213			: _last(0), _size(0), _buf(0)
214			{
215	root	1.8	insert (begin (), n, t);
216	root	1.4	}
217			simplevec (const_iterator first, const_iterator last)
218			: _last(0), _size(0), _buf(0)
219			{
220	root	1.8	insert (begin (), first, last);
221	root	1.4	}
222			simplevec (const simplevec<T> &v)
223			: _last(0), _size(0), _buf(0)
224			{
225	root	1.8	reserve (v._last);
226			memcpy (_buf, v.begin (), v.size ()*sizeof (T));
227			_last = v._last;
228	root	1.4	}
229			simplevec<T> &operator= (const simplevec<T> &v)
230			{
231	root	1.8	if (this != &v) {
232			_last = 0;
233			reserve (v._last);
234			memcpy (_buf, v.begin (), v.size ()*sizeof (T));
235			_last = v._last;
236			}
237	root	1.4	return *this;
238			}
239			~simplevec ()
240			{
241	root	1.8	dealloc (_buf);
242	root	1.4	}
243			const T &front () const
244			{
245	root	1.8	//ministl_assert (size () > 0);
246			return _buf[0];
247	root	1.4	}
248			T &front ()
249			{
250	root	1.8	//ministl_assert (size () > 0);
251			return _buf[0];
252	root	1.4	}
253			const T &back () const
254			{
255	root	1.8	//ministl_assert (size () > 0);
256			return _buf[_last-1];
257	root	1.4	}
258			T &back ()
259			{
260	root	1.8	//ministl_assert (size () > 0);
261			return _buf[_last-1];
262	root	1.4	}
263			bool empty () const
264			{
265	root	1.8	return _last == 0;
266	root	1.4	}
267			void clear ()
268			{
269	root	1.8	_last = 0;
270	root	1.4	}
271			void push_back (const T &t)
272			{
273	root	1.8	reserve (_last+1);
274			*end () = t;
275			++_last;
276	root	1.4	}
277			void push_back (T &t)
278			{
279	root	1.8	reserve (_last+1);
280			*end () = t;
281			++_last;
282	root	1.4	}
283			void pop_back ()
284			{
285	root	1.8	//ministl_assert (size () > 0);
286			--_last;
287	root	1.4	}
288			const T &operator[] (size_type idx) const
289			{
290	root	1.8	//ministl_assert (idx < size ());
291			return _buf[idx];
292	root	1.4	}
293			T &operator[] (size_type idx)
294			{
295	root	1.8	//ministl_assert (idx < size ());
296			return _buf[idx];
297	root	1.4	}
298			iterator insert (iterator pos, const T &t)
299			{
300	root	1.8	//ministl_assert (pos <= end ());
301			long at = pos - begin ();
302			reserve (pos, 1);
303			pos = begin ()+at;
304			*pos = t;
305			++_last;
306			return pos;
307	root	1.4	}
308			iterator insert (iterator pos, const_iterator first, const_iterator last)
309			{
310			//ministl_assert (pos <= end ());
311	root	1.8	long n = last - first;
312			long at = pos - begin ();
313			if (n > 0) {
314			reserve (pos, n);
315			pos = begin ()+at;
316			memcpy (pos, first, (last-first)*sizeof (T));
317			_last += n;
318			}
319			return pos;
320	root	1.4	}
321			iterator insert (iterator pos, size_type n, const T &t)
322			{
323			//ministl_assert (pos <= end ());
324	root	1.8	long at = pos - begin ();
325			if (n > 0) {
326			reserve (pos, n);
327			pos = begin ()+at;
328			for (int i = 0; i < n; ++i)
329			pos[i] = t;
330			_last += n;
331			}
332			return pos;
333	root	1.4	}
334			void erase (iterator first, iterator last)
335			{
336	root	1.8	if (last != first) {
337	root	1.18	memmove (first, last, (end () - last) * sizeof (T));
338	root	1.8	_last -= last - first;
339			}
340	root	1.4	}
341			void erase (iterator pos)
342			{
343			if (pos != end ()) {
344	root	1.18	memmove (pos, pos+1, (end () - (pos+1)) * sizeof (T));
345	root	1.4	--_last;
346			}
347			}
348	root	1.8	void swap (simplevec<T> &t)
349			{
350			::swap(_last, t._last);
351			::swap(_size, t._size);
352			::swap(_buf, t._buf);
353			}
354	root	1.4	};
355
356			template<class T>
357			bool operator== (const simplevec<T> &v1, const simplevec<T> &v2)
358			{
359			if (v1.size () != v2.size ())
360	root	1.8	return false;
361	root	1.4	return !v1.size () \|\| !memcmp (&v1[0], &v2[0], v1.size ()*sizeof (T));
362			}
363
364			template<class T>
365			bool operator< (const simplevec<T> &v1, const simplevec<T> &v2)
366			{
367			unsigned long minlast = min (v1.size (), v2.size ());
368			for (unsigned long i = 0; i < minlast; ++i) {
369			if (v1[i] < v2[i])
370	root	1.8	return true;
371			if (v2[i] < v1[i])
372			return false;
373	root	1.4	}
374			return v1.size () < v2.size ();
375			}
376
377	root	1.1
378			template<typename T>
379			struct vector : simplevec<T>
380	root	1.35	{
381			};
382	root	1.1
383	ayin	1.32	struct stringvec : simplevec<char *>
384			{
385			~stringvec ()
386			{
387			for (char **c = begin (); c != end (); c++)
388			free (*c);
389			}
390			};
391
392	root	1.34	#if 0
393	root	1.1	template<typename T>
394	root	1.38	struct rxvt_vec : simplevec<void *>
395			{
396	root	1.1	typedef T *iterator;
397
398			void push_back (T d) { simplevec<void >::push_back ((void )d); }
399			T pop_back () { return (T)simplevec<void >::pop_back (); }
400			void erase (int i) { erase (begin () + i); }
401			void erase (iterator i) { simplevec<void >::erase ((void *)i); }
402			iterator begin () const { return (iterator)simplevec<void *>::begin (); }
403			iterator end () const { return (iterator)simplevec<void *>::end (); }
404			T &operator [] (int i) { return * (T ) (& (( (simplevec<void > )this)[i])); }
405			const T &operator [] (int i) const { return * (const T ) (& (( (const simplevec<void > )this)[i])); }
406			};
407	root	1.34	#endif
408	root	1.1
409			template<typename T>
410	root	1.38	struct auto_ptr
411			{
412	root	1.1	T *p;
413
414			auto_ptr () : p (0) { }
415			auto_ptr (T *a) : p (a) { }
416
417			auto_ptr (auto_ptr<T> &a)
418			{
419			p = a.p;
420			a.p = 0;
421			}
422
423			template<typename A>
424			auto_ptr (auto_ptr<A> &a)
425			{
426			p = a.p;
427			a.p = 0;
428			}
429
430			~auto_ptr ()
431			{
432			delete p;
433			}
434
435			// void because it makes sense in our context
436			void operator = (T *a)
437			{
438			delete p;
439			p = a;
440			}
441
442			void operator = (auto_ptr &a)
443			{
444			*this = a.p;
445			a.p = 0;
446			}
447
448			template<typename A>
449			void operator = (auto_ptr<A> &a)
450			{
451			*this = a.p;
452			a.p = 0;
453			}
454
455			operator T * () const { return p; }
456
457			T *operator -> () const { return p; }
458			T &operator * () const { return *p; }
459
460			T *get ()
461			{
462			T *r = p;
463			p = 0;
464			return r;
465			}
466			};
467
468			typedef auto_ptr<char> auto_str;
469	root	1.20
470	root	1.1	#endif
471